Quadratics Checkup: Factored Form and Zeros

Front

What are the linear factors of a quadratic function with zeros -7 and 9?

Back

(x + 7)(x - 9)

Front

What is the standard form of a quadratic equation?

Back

y = ax² + bx + c

Front

What relationship does the vertex of a parabola have with the x-intercepts?

Back

It's the average of the zeros.

Front

What are the green dots on a graph of a quadratic function called?

Back

Roots or x-intercepts.

Front

What are the x-intercepts of a quadratic function if they are 0 and 4?

Back

0 and 4.

Front

What is the vertex of a parabola?

Back

The highest or lowest point of the parabola.

Front

How do you find the x-intercepts of a quadratic function?

Back

Set the quadratic equation to zero and solve for x.

Front

What does the axis of symmetry of a parabola represent?

Back

A vertical line that divides the parabola into two mirror-image halves.

Front

What is the formula for the axis of symmetry in a quadratic function?

Back

x = -b/(2a) where y = ax² + bx + c.

Front

What does the 'a' in the quadratic equation y = ax² + bx + c represent?

Back

The coefficient that determines the direction and width of the parabola.